package cn.eric.game.swing;

import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;

public class TestRadioButton {
	private JFrame mainFrame;
	   private JLabel headerLabel;
	   private JLabel statusLabel;
	   private JPanel controlPanel;

	   public TestRadioButton(){
	      prepareGUI();
	   }

	   public static void main(String[] args){
		  TestRadioButton  swingControlDemo = new TestRadioButton();      
	      swingControlDemo.showRadioButtonDemo();
	   }

	   private void prepareGUI(){
	      mainFrame = new JFrame("Java Swing Examples");
	      mainFrame.setSize(400,400);
	      mainFrame.setLayout(new GridLayout(3, 1));
	      mainFrame.addWindowListener(new WindowAdapter() {
	         public void windowClosing(WindowEvent windowEvent){
	            System.exit(0);
	         }        
	      });    
	      headerLabel = new JLabel("", JLabel.CENTER);        
	      statusLabel = new JLabel("",JLabel.CENTER);    

	      statusLabel.setSize(350,100);

	      controlPanel = new JPanel();
	      controlPanel.setLayout(new FlowLayout());

	      mainFrame.add(headerLabel);
	      mainFrame.add(controlPanel);
	      mainFrame.add(statusLabel);
	      mainFrame.setVisible(true);  
	   }

	   private void showRadioButtonDemo(){
	      headerLabel.setText("Control in action: RadioButton"); 

	      final JRadioButton radApple = new JRadioButton("Apple", true);
	      final JRadioButton radMango = new JRadioButton("Mango");
	      final JRadioButton radPeer = new JRadioButton("Peer");

	      radApple.setMnemonic(KeyEvent.VK_C);
	      radMango.setMnemonic(KeyEvent.VK_M);
	      radPeer.setMnemonic(KeyEvent.VK_P);

	      radApple.addItemListener(new ItemListener() {
	         public void itemStateChanged(ItemEvent e) {         
	            statusLabel.setText("Apple RadioButton: " 
	            + (e.getStateChange()==1?"checked":"unchecked"));
	         }           
	      });

	      radMango.addItemListener(new ItemListener() {
	         public void itemStateChanged(ItemEvent e) {             
	            statusLabel.setText("Mango RadioButton: " 
	            + (e.getStateChange()==1?"checked":"unchecked")); 
	         }           
	      });

	      radPeer.addItemListener(new ItemListener() {
	         public void itemStateChanged(ItemEvent e) {             
	            statusLabel.setText("Peer RadioButton: " 
	            + (e.getStateChange()==1?"checked":"unchecked"));
	         }           
	      });

	      //Group the radio buttons.
	      ButtonGroup group = new ButtonGroup();
	      group.add(radApple);
	      group.add(radMango);
	      group.add(radPeer);

	      controlPanel.add(radApple);
	      controlPanel.add(radMango);
	      controlPanel.add(radPeer);       

	      mainFrame.setVisible(true);  
	   }
}
